DSPI and DMA-MUX support for SPC5xx.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5830 35acf78f-673a-0410-8e92-d51de3d6d3f4


git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5831 35acf78f-673a-0410-8e92-d51de3d6d3f4


git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5832 35acf78f-673a-0410-8e92-d51de3d6d3f4
DSPI working on SPC56ELxx.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5833 35acf78f-673a-0410-8e92-d51de3d6d3f4
Merge branch 'master' of git://github.com/ChibiOS-Upstream/ChibiOS-RT